Sazilast 53 — high-strength thiokol joint sealant
Thixotropic polysulfide sealant for joints in concrete, bridges, tunnels and metal roofs; tensile strength at break at least 0.7 MPa.

Sazilast 9 is based on a hybrid polymer: a one-component thixotropic sealant for joints between structures made of mineral materials in frame-monolithic and block construction, cracks, joints at plasterboard and door frames. It is designed for joint movement of up to 15%, elongation at break is at least 400%, and service is from −40 to +80 °C. It is applied by spatula, brush or caulking gun in dry weather, and tools are cleaned with water. The compound is intended for sealing joints, not for waterproofing.
| Manufacturer | Sazilast (SAZI) — OOO “KHIMTEKH-R”, Roshal |
|---|---|
| Type | joint sealants |
| Use | joints and junctions, interior spaces |
| Base | one-component thixotropic sealant based on a hybrid polymer |
| Colour | white, grey; tinting possible |
| Packaging | 15 kg plastic pail; 0.9 kg foil sausage pack |
| Application method | by spatula, brush or caulking gun, in dry weather only; anti-adhesive backer rod of polyethylene foam; in cold weather keep at 23 °C for at least a day; wash tools with water |
| Application temperature | from −13 to +35 °C |
| Curing | skin formation 90–120 min at 23 °C; curing 48 h at 23 °C and a 4 mm layer |
| Key properties | elongation at break at least 400% (on dumbbell specimens); nominal tensile strength at break at least 0.25 MPa (on dumbbell specimens); joint movement not more than 15%; density ≈1.45 g/cm³; viscosity 140–250 Pa·s; service from −40 to +80 °C |
| Shelf life | 9 months at −13…+30 °C |
| Standards | STO 138-37547621-2016; certificate of conformity (manufacturer OOO “KHIMTEKH-R”, production — Roshal) |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Thixotropic polysulfide sealant for joints in concrete, bridges, tunnels and metal roofs; tensile strength at break at least 0.7 MPa.
Winter version of the facade sealant for panel joints and cracks: applied at temperatures from −20 to +25 °C, brush application permitted.
Thixotropic sealant for vertical and inclined joints of bridges and tunnels under mechanical load; tensile strength at break from 1.5 MPa.
Polyurethane facade sealant for wide panel joints: increased sag resistance, applied at temperatures from −15 to +45 °C.
Free-flowing polysulfide sealant for pouring into horizontal and hard-to-reach joints of roofs, roads, bridges and tunnels; elongation at least 200%.
Polyurethane sealant for facade panel joints; according to the data sheet, not used in roof elements or joints with prolonged water contact.